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10202202121 = 79721117909
BaseRepresentation
bin10011000000001100…
…10100000000001001
3222100000020120021211
421200012110000021
5131343230431441
64404204333121
7510551200336
oct114006240011
928300216254
1010202202121
114365971501
121b888441a1
13c67865bb7
146cad5998d
153ea9eea81
hex260194009

10202202121 has 8 divisors (see below), whose sum is σ = 10333353600. Its totient is φ = 10071101040.

The previous prime is 10202202119. The next prime is 10202202169. The reversal of 10202202121 is 12120220201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10202202121 - 21 = 10202202119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202202821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560715 + ... + 578623.

It is an arithmetic number, because the mean of its divisors is an integer number (1291669200).

Almost surely, 210202202121 is an apocalyptic number.

It is an amenable number.

10202202121 is a deficient number, since it is larger than the sum of its proper divisors (131151479).

10202202121 is an equidigital number, since it uses as much as digits as its factorization.

10202202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25199.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10202202121 its reverse (12120220201), we get a palindrome (22322422322).

The spelling of 10202202121 in words is "ten billion, two hundred two million, two hundred two thousand, one hundred twenty-one".

Divisors: 1 79 7211 17909 569669 1414811 129141799 10202202121